*{
    margin: 0;
    padding: 0;
}
header{
    margin: auto;
    margin-top: 100px;
    width: 649px;
}
header>img{
    z-index: 1;
    position: relative;
}
.yuan{
    margin-left: 520px;
    margin-top: -50px;
    z-index: 2;
    position: absolute;
}
.yuan>div{
    width: 0px;
    height: 0px;
    border: 10px solid orangered;
    border-radius: 50%;
    float: left;
    margin-left: 15px;
}
.shz{
    margin-top: 50px;
    position: relative;
}
/* 第一段 */
.dyd{
    margin-left: 31px;
    position:absolute;
    top: 23px;
    width: 180px;
}
.dyd div{
    width: 124px;
    height: 46px; 
    background-color:#fdfdfd;
    margin-left: 31px;
}
a{
    text-decoration: none;
}
.dyd div p{
    line-height: 46px;
    font-size: 20px;
}
/* 第二段 */
.ded{
    margin-left: 31px;
    position:absolute;
    top: 23px;
    width: 180px;
    margin-left: 240px;
}
.ded div{
    width: 124px;
    height: 46px; 
    background-color:#fdfdfd;
    margin-left: 31px;
}
.ded div p{
    line-height: 46px;
    font-size: 20px;
    margin-top: 22px;
}
/* 第三段 */
.dsd{
    margin-left: 31px;
    position:absolute;
    top: 23px;
    width: 180px;
    margin-left: 450px;
}
.dsd div{
    width: 124px;
     height: 46px; 
    background-color:#fdfdfd;
    margin-left: 31px;
}
.dsd div p{
    line-height: 46px;
    font-size: 20px;
    margin-top: 22px;
}
.h2{
    margin-top: 40px;
    margin-bottom: 20px;
}
section{
    height: 400px;
    width: 649px;
    background-color: #eeefef;
}
/* 黑人图片 */
.hr{
    position: relative;
}
section>.hr>img{
    position: absolute;
    top: 30px;
    left: 30px;
}
.hrwz{
    width: 400px;
    position: absolute;
    top: 25px;
    left: 230px;
}
.hrwz>p{
    margin-top: 13px;
    font-size: 10px;
}
/* 两个人 */
.lgr{
    position: relative;
}
section>.lgr>img{
    position: absolute;
    top: 210px;
    left: 30px;
}
.lgrwz{
    width: 400px;
    position: absolute;
    top: 190px;
    left: 230px;
}
.lgrwz>p{
    margin-top: 10px;
    font-size: 10px;
}

.sz{
    display: flex;
    background-color: #eeefef;
    position: relative;
}
.sz>div{
    width: 318px;
    height: 142px;
}
.zuo{
    position: relative;
    top: 20px;
    left: 30px;
}
.you{
    position: absolute;
    top: 18px;
    left: 350px;
}
.ttwz{
    margin-left: 90px;
    margin-top: -100px;
    position: absolute;
}
.szwz{
    margin-left: 92px;
    margin-top: -100px;
    position: absolute;
}
.szxt{
    position: relative;
    left: 580px;
    top: 20px;
    z-index: 2;
}
nav>div{
    position: relative;
}
/* 背景 */
.bj{
    width: 100%;
    position: absolute;
    z-index: 1;
    top: -20px;
}
/* logo */
.logo{
    position:absolute;
    top: 150px;
    z-index: 12;
    left: 250px;
}
/* F 图片*/
.F{
    position: absolute;
    top: 150px;
    z-index: 12;
    left: 1050px;
}
.wifi{
    position: absolute;
    top: 150px;
    z-index: 12;
    left: 1110px;
}
.daof{
    position: absolute;
    top: 150px;
    z-index: 12;
    left: 1170px;
}
aside>.zuo{
    margin-top: 320px;
    margin-left: 230px;
}
.youxwz{
    margin-top: -150px;
    margin-left: 830px;
}
.youxiawg{
    display: grid;
    grid-template-rows: repeat(2,290px);
    grid-template-columns: repeat(3,208px);
    grid: 11px;
    margin-left: 830px;
}
.Fren{
    margin-left: 830px;
    margin-top: 20px;
}
.youxiawg>div{
    background-color: #eeefef;
    box-sizing: border-box;
    padding: 31px;
}
.youxiawz{
    width: 647px;
    background-color: #eeefef;
    height: 427px;
    margin-top: 20px;
}
.yxdyd{
    width: 647px;
    margin-left: 10px;
}
.Contact{
    margin-top: 20px;
}
.dhz{
    width: 428px;
    height: 306px;
    background-color: #eeefef;
    position: relative;
}
.dhz>p:nth-child(1){
    position: absolute;
    left: 30px;
    top: 36px;
}
.dhz>p:nth-child(2){
    position: absolute;
    left: 30px;
    top: 65px;
}
.dhz>p:nth-child(3){
    position: absolute;
    left: 30px;
    top: 94px;
}
.dhz>p:nth-child(4){
    position: absolute;
    left: 30px;
    top: 126px;
}
.name{
    background-color: white;
    width: 262px;
    height: 22px;
    position:absolute;
    top: 36px;
    left: 150px;
}
.E-mail{
    background-color: white;
    width: 262px;
    height: 22px;
    position:absolute;
    top: 65px;
    left: 150px;
}
.city{
    background-color: white;
    width: 262px;
    height: 22px;
    position:absolute;
    top: 94px;
    left: 150px;
}
.message{
    background-color: white;
    width: 262px;
    height: 112px;
    position:absolute;
    top: 126px;
    left: 150px;
}
.clj1{
    position:absolute;
    width: 85px;
    height: 34px;
    background-color: #818181;
    top: 260px;
    left: 217px;
}
.clj2{
    position:absolute;
    width: 85px;
    height: 34px;
    background-color: #818181;
    top: 260px;
    left: 320px;
}
.dhzy{
    position: relative;
}
.dhzlxhz{
    position: absolute;
    background-color: #eeefef;
    width: 209px;
    height: 305px;
    left: 450px;
    top: -306px;
    
}
.xhzy{
    position: absolute;
    left: 100px;
}
.xhzz{
    position: absolute;
    left: 20px;
}
.dhzyx{
    position: relative;
    width: 209px;
    left: 470px;
    top: -200px;
}
footer{
    margin-top: 400px;
    height: 142px;
    background-image: url(../作业/images/bg_top.gif);
}
footer>div>img{
    margin-top: 50px;
    margin-left: 200px;
}
footer>div>p{
    margin-left: 800px;
    margin-top: -40px;
}